Bicycles are useful for all sorts of things — namely transportation and exercise. But in Brazil, enterprising prison officials have figured out a way to use them for electric power production.

For less than $2K you can convert your Ferrari FF to run on E85, raising the pathetic 650 stock horsepower to a more respectable 875 hp. On top of that, you'll apparently cut emissions by 80%. It's the "green" grand touring supercar.

Occasionally, a wind turbine's overspeed brake fails and causes a lubricant-igniting nacelle fire. It's just like the Deepwater Horizon disaster... only much, much smaller and easier to fix. [TheDetroitBureau]

BMW will launch a radically lightweight mass-production electric car in 2013. The BMW Megacity will be sold under a new sub-brand and based on technology being tested by the Mini E. [Autocar]

Electric cars can be fast, but the Mini E isn't. Its 09:51.45 was fast enough to qualify on the second row of a grand prix...in 1939.

Take a look at this shot and try to figure out exactly how the CT&T C Square electric roadster is challenged. Below, we'll close the door to reveal the answer. Hint: it's one word.

Darin Cosgrove, the founder of hypermiling site Ecomodder, has built himself a boattailed Pontiac Firefly, a.k.a. the Canadian-market Geo Metro. The result? 64 mpg and all the rubbernecking he can stand. [Ecomodder via Wired]

The Kepler Motion uses a 550 HP Ford EcoBoost V6 to power the rear wheels and a 250 HP electric motor to power the fronts. It'll hit 60 MPH in 2.5 seconds and reach 200 MPH. Now that's a hybrid.

The organizers of the first-ever electric motorcycle race on the Isle Of Man, the TTXGP, are bringing electric car racing to the streets of Paris next June. The cars may be electric, but don't expect them to be slow.